Your MBA Probably Won’t Help You Build A Unicorn. Here’s The Data

Stanford and Harvard MBAs are everywhere in startup mythology. But do business schools actually produce a disproportionate share of unicorn founders – and which ones move the needle?

I went back to the data we have assembled at the Stanford GSB Venture Capital Initiative and isolated the MBA graduates among U.S. unicorn founders. The dataset covers 1,826 U.S.-based unicorns and a matched random sample of U.S.-based VC-backed companies, with hand-collected education records for thousands of founders.

Here is what the MBA story really looks like – and what a founder weighing the degree should take from it.

The discussion below focuses on U.S.-based business schools, because that is where the comparison is meaningful. A handful of foreign schools appear in the raw counts, and I treat them separately at the end.

REALITY CHECK: 1 IN 8 OF U.S. UNICORN FOUNDERS HAVE AN MBA & ROUGHLY A QUARTER OF UNICORNS HAVE AN MBA FOUNDER

Before naming schools, it is worth setting the baseline. Among all U.S. unicorn founders in the dataset, 554 hold an MBA – about 13%, or roughly 1 in 8, of all founders, and about 29% of those who hold any graduate degree.

So the MBA is a real and well-trodden path, but it is not the dominant one. Roughly 1 in 8 of U.S. unicorn founders and 1 in 3 of those with a graduate degree took it.

And the share is not rising: among unicorns that crossed the billion-dollar mark in 2020 or later, the MBA share is actually slightly lower (about 11%, or 1 in 9) than for the full history. Whatever edge an MBA confers, it is not becoming more common at the top of the startup world.

Among all U.S.-based unicorns, 436 unicorns (roughly a quarter) have at least one co-founder with an MBA degree. That ratio stays the same if we look at more recent data.

BY RAW COUNT, 3 SCHOOLS DOMINATE

When you rank U.S. business schools by the number of unicorns their MBA graduates founded, the concentration is striking. Harvard leads with 87 unicorns, Stanford follows with 58, and Wharton (University of Pennsylvania) with 39.

Those three schools alone account for 178 unicorns – 41% of all MBA-founded U.S. unicorns. Add Columbia (25) and MIT Sloan (19) and the top five reach 50% of the total.

After the top five there is a steep drop. Chicago Booth (18), UCLA (17), Berkeley Haas (16), and Kellogg at Northwestern (14) form a respectable second tier, but the counts fall into single digits quickly after that. The familiar handful of elite programs really does supply most of the MBA-credentialed unicorn founders – and the gap between them and everyone else is large.

But raw counts are not necessarily the right tool for the question founders should actually care about. Harvard produces the most unicorn founders in part because Harvard admits the most MBA students, and because its graduates are disproportionately drawn from the kind of high-achieving, well-networked population that founds companies regardless of the degree. To know whether a school gives you an edge, we have to compare it against a baseline.

THE RIGHT QUESTION: ARE MBA FOUNDERS OVERREPRESENTED?

One way to separate signal from scale is to use an odds ratio. For each school I compare the share of unicorn founders who attended it against the share of founders in a matched random sample of VC-backed companies who attended it.

An odds ratio above 1 means that school’s MBAs are overrepresented among unicorn founders relative to ordinary VC-backed startups; below 1 means underrepresented. A ratio of exactly 1 means the school’s graduates found unicorns at exactly the rate you would expect from its presence in the startup population.

This is where the MBA story gets interesting. Most U.S. business schools cluster close to the baseline of 1.0, and only a few results are statistically significant.

At the founder level, the clearest signals are Harvard (odds ratio 1.69, significant at the 1% level), Stanford (1.48, significant at 10%), and Columbia (1.72, significant at 10%). These three are genuinely overrepresented – their MBAs found unicorns at meaningfully higher rates than the matched sample. That is roughly 70% higher than baseline for HBS, 50% higher for Stanford GSB, and 70% higher for Columbia. These numbers are quite dramatic.

Wharton (1.35), UCLA (1.83), and Dartmouth’s Tuck (2.04) all sit above 1 as well, but with smaller samples their results do not clear conventional significance thresholds – the edge may be real, but the data cannot yet confirm it.

Michigan State shows the highest U.S. odds ratio of all (4.54), but it rests on just five unicorn founders against a single random-sample founder, so it is better read this presently as a small-sample curiosity than a reliable finding. (Let’s see whether Michigan State MBA graduates will prove me wrong and found more unicorns, thus making their high ratio significant!)

THE GENUINE SURPRISES CUT IN BOTH DIRECTIONS

Two results stand out against the conventional wisdom.

The first is MIT Sloan. By raw count, MIT is a top-five school, yet its odds ratio sits below 1 (0.81 at the founder level) – its MBAs are, if anything, slightly underrepresented among unicorn founders relative to the broader VC-backed population. MIT’s strength in producing founders appears to run through its engineering and undergraduate programs far more than through its MBA.

The second, and sharper, surprise is Northwestern’s Kellogg. It is the only U.S. school whose underperformance is statistically significant: an odds ratio of 0.56, significant at the 10% level. Kellogg produces a solid number of unicorn founders in absolute terms (14), but proportionally fewer than its strong presence in the VC-backed startup world would predict. A Kellogg MBA founder has more than 40% lower chance of founding a unicorn.

Chicago Booth (0.90), Cornell (0.75), and USC (0.60) round out the below-baseline group. None of these are weak business schools – but on this specific measure, their MBAs do not over-index toward unicorn founding.

PER GRADUATE, STANFORD PULLS AWAY

Another way to control for scale is to compute a per-capita measure: unicorns founded per 1,000 MBA graduates. To estimate this metric, I used average class sizes over roughly two decades. This normalizes for the fact that Harvard’s class is more than twice the size of Stanford’s.

On this basis the ranking flips at the top. Stanford leads decisively at 6.75 unicorns per 1,000 graduates – more than half again Harvard’s 4.36. Harvard’s enormous absolute lead is substantially a function of its large class; per student, Stanford is the most productive MBA program for unicorn founding by a clear margin.

Berkeley Haas (2.92) and UCLA (2.18) round out the top tier, with Wharton and MIT clustered just behind. The smaller West Coast programs punch above their raw-count weight once you adjust for class size.

The reading for a prospective student is nuanced. Stanford offers the highest per-graduate odds, but it also admits the fewest students and selects heavily for people who were already likely to start companies. Harvard offers the largest absolute network of founder-alumni to plug into. These are different things, and which matters more depends on what you are actually seeking from the degree.

HOW TO TREAT THE FOREIGN SCHOOLS

A few non-U.S. business schools appear in the raw counts – most visibly INSEAD (10 U.S.-based unicorns) and Tel Aviv University (9), with HEC Paris, IMD, London Business School, and Oxford further down.

INSEAD and Tel Aviv University are just behind NYU Stern, a very respectable showing, especially considering that for this analysis I ignored any unicorns based outside the U.S. (global unicorn data is coming on my Substack!) INSEAD’s odds ratio looks spectacular (around 10), but it is built on a single matched-sample company, which makes the estimate statistically fragile rather than a reliable signal of outsized edge. Tel Aviv’s presence reflects the strength of the Israeli startup ecosystem feeding U.S.-headquartered unicorns more than the MBA credential itself.

Because the matched random sample is U.S.-based, the comparison that makes odds ratios meaningful does not translate cleanly to foreign schools – their graduates enter the U.S. VC-backed population through different channels. I therefore keep them out of the main U.S. ranking and flag them only as context.

The honest summary is that a small number of elite international programs do feed U.S. unicorns, but the data is too thin to rank them against the U.S. schools head-to-head. For the global unicorn data that comparison would be more justified.

WHAT FOUNDERS SHOULD TAKE FROM THIS

Three conclusions hold up for those deciding whether to pursue an MBA.

First, the MBA is a sizable minority path, not the default. Roughly 1 in 8 U.S. unicorn founders has one, and the share is flat to declining.

Second, where the edge exists, it is concentrated in very few schools. Harvard, Stanford, and Columbia are the only U.S. programs whose overrepresentation is statistically credible. Below them, most elite MBAs land near the baseline – their graduates found unicorns at roughly the rate their broader startup presence predicts. A top-ten MBA is not, on this evidence, a reliable multiplier on your odds of building a billion-dollar company.

Third, separate the network from the signal. What these top programs plausibly offer is access – to co-founders, early employees, and the investors documented in my angel and VC rankings – rather than a magic uplift in founding ability. That is a real asset. The data rewards the few schools at the very top; for the rest, the case for the MBA as a unicorn-founding accelerant is weaker than the mythology might imply.

Additional advice to those who are already pursuing their MBA now: my research clearly shows that founders that get funded by investors from the same alma mater have a higher chance of success. As a founder, network with all the classmates who will be pursuing investor roles. Befriend investors in years just ahead and behind you.

My unicorn research also clearly shows that many unicorn founders find their co-founders at school. And companies with more than one founder are more likely to become a unicorn. So pay particular attention to your classmates, for some of them can become your co-founders.

IF YOU’D LIKE TO LEARN MORE

This piece sits alongside my undergraduate university odds ratios and my VC and angel investor rankings. On my Substack, I will deep dive into whether the MBA premium differs by industry, by founding era, geography for unicorn founders. Then, I also will explore whether an MBA gets you an edge when it comes being a VC or PE investor.

METHODOLOGICAL NOTES

The data combines commercial and proprietary datasets, public sources, and extensive hand-collection by my research team. I include only U.S.-headquartered companies, comparing unicorns against a matched random sample of VC-backed companies. MBA includes MBA-equivalent degrees (such as Sloan degree from MIT Sloan or MSx degree from Stanford GSB).

Denominators are conditioned on having MBA data: 436 unicorns and 409 random-sample companies have at least one MBA founder, covering 554 unicorn and 499 random-sample MBA founders.

Odds ratios compare a school’s share among unicorn founders against its share in the matched random sample. Statistical significance is assessed with a two-sided z-test on the log odds ratio; * denotes p < 0.01, ** denotes p < 0.05, and * denotes p < 0.10. Only schools with at least five unicorn founders (or unicorns, at the company level) are tested. Per-capita figures use average annual MBA class sizes over 2000-2021. Small-sample odds ratios should be read with caution, particularly where the random-sample count is very low.

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Ilya Strebulaev is the David S. Lobel Professor of Private Equity and Professor of Finance at the Stanford Graduate School of Business, where he founded and directs the Stanford GSB Venture Capital Initiative. He is the author of The Venture Mindset and a leading researcher on venture capital, private equity, and startup founders, drawing on a dataset covering thousands of unicorns and the people behind them.

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